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CVE-2020-26953

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CVE-2020-26953

Published: Dec 9, 2020

Modified: Aug 4, 2024

PUBLISHED

Description

It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

VendorProductVersions

Mozilla

Firefox

affected
< 83

Mozilla

Firefox ESR

affected
< 78.5

Mozilla

Thunderbird

affected
< 78.5

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